qtech wrote:I'm not sure this is necessarily a related issue to your earlier one. When you say you "got the unlock dialog", are you saying that video was working fine, you locked the screen, came back later and tried to log back in? If this is correct, was the PC, hard drive and/or monitor asleep? If this is also correct, then the issue involves power-management which is a whole different ballgame. I ask because you appear to have an Nvidia chipset of which I know little. Are nvidia chipsets well supported in Linux?
And would you clarify something for me? Is this the motherboard in your sig? I ask because the P6NGM-L is an MSI motherboard not Asus.
I don't know how it wouldn't be a "related issue" -- it's the same behavior (perhaps I didn't describe it precisely enough). FWIW, it seems that if I manually lock the screen, it's okay, but if it locks automatically (too long without user input like mouse movement or keyboard activity) I see this behavior. It's my understanding that nVidia is well supported, in that the chip manufacturer vigorously maintains a Linux native driver, which I'm using (and upgrading which introduced this behavior, though reverting to the previous recommended release doesn't, after all, appear to have corrected the problem), though due to the non-free nature of the driver I have to use smxi or sgfxi to install the driver (that is, it's not available from a package repository and the vendor doesn't supply it as a .deb -- though they do apparently offer source code I could in theory compile myself).
But yes, what I'm saying is that if I leave the computer (or just sit without input, as for instance when watching a video online) for two minutes (which is my set screen saver time) and the screen saver kicks in, even before the password lock enables after one additional minute, I'll get some variation of the delayed recovery. It's not always the same -- sometimes I'll get the off-white screen, sometimes I won't, and the time delay to recover the mouse cursor after the wallpaper and icons reload is highly variable, anything from a few seconds to what seems like a full minute -- and as I noted, this doesn't appear to happen if I manually lock the screen (right click wallpaper, "Lock Screen"); I haven't confirmed a single instance on a manual lock since I started watching for that. This is not power management, at least not that I've intentionally set up; I don't have this computer set to "sleep" because I don't like waiting for recovery and have little/no experience setting up sleep mode; further, I run BOINC computation 24/7, and sleep mode would interrupt my crunching.
Edit: re: power management, I just verified, I'm set to "performance" profile at all times (this is a desktop tower system without battery power), which uses power management only for the monitor, and that only long after the screen saver locks the screen. I did recently replace my nine year old CRT with a used LCD (same resolution and refresh rate), but the monitor is clearly working before the desktop is accessible since I can see the locked-screen login and the screen saver graphics running behind it when I return to the console and touch a key or move the mouse.
MEPIS 11 64-bit, MSI P6NGM-L motherboard, Core 2 Quad 9400 2.67 GHz, 4 GiB PC2-5300 RAM, 1 GiB nVidia GT520 on PCI Express x16.